Hand-operated key-seating machine.



E. LINK.

HAND OPERATED KEY SEATING MACHINE.

APPLICATION FILED FEB. 28, 1908.

Patented 0613.20, 1908.

UNITED STATES PATENT OFFICE.

FREDERICK LINK, OF HOBOKEN, NEW JERSEY.

HAND-OPERATED KEY-SEATING- MACHINE.

To all whom it may concern:

Be it known that I, FREDERICK LINK, a subject of the Czar of Russia,residing at Hoboken, Hudson county, State of New J ersey, have inventedcertain new and useful Improvements in Hand-Operated Key-SeatingMachines, of'which the following is a clear, full, and exactdescription.

This invention relates to a hand-operated key-seating machine, theobject being to provide a machine of this character that can be set upon a bench or transported for eld work.

To these and other ends which will hereinafter appear, my inventioncomprises the novel features of improvement and arrangement of partswhich I will now proceed to describe and linally claim, reference beinghad to the accompanying drawing, forming part hereof, whereinl Figure 1illustrates a longitudinal sectional view of my improved key-.seatingInachine, the section being taken on a line a-cz in Fig. 2; Fig. 2 is anend View of my improved machine, looking from the left in Fig. 1; Fig. 3is a similar view looking from the right in Fig. l.

In the accompanying drawing a suitable frame is illustrated by thenumeral l. The frame 1, in this instance, is provided with guide-ways 2which fit into the grooves 3, of a longitudinally movable reciprocatingslide 4. The under side of the slide 4 is provided with a rack 5, withwhich a pinion 6 meshes. The pinion 6 is carried by a shaft 7, which isin turn suitably carried by the frame 1, as shown. For operating thepinion 6 a leverhandle 8 is provided.

To the slide 4, at about the position indicated by 9, I pivotally securethe butt-end of a tool-bar 10, the forward end of the said tool-barbeing provided with a removable cutting tool 11, the said tool beingheld in position by a set-screw 12. The under side of the tool-bar l1,intermediate the ends thereof, rests upon an adjusting block 13, thebottom of said block being tapered, as at 14, to coincide with thetapered portion 15 on the slide 4. To move the block 13 backward orforward, a spindle 16, is provided, which, at its forward end, passesthrough the block 13 and is rotatably held in position by a collar 17and a nut 18. The opposite end of the spindle 16 is threaded, as at 19,and engages a threaded opening 20 in the p Specification of LettersPatent.

Application led February 28, 1908.

Patented oct. 2o, 1908.

serial No. 418,207.

slide 4, a hand-wheel 21 being provided to spring being carried by a bar23, which in f turn is carried by the lugs 24 on the slide`4.

One o f the chief features of my improved key-seating machine is theradially adjustable face-plate 25, the frame 26 of which is pivoted tothe frame 1 as at 27. Atthe bottom of the said face-plate 25 I have, inthis instance, provided an adjusting screw 28 and a binding screw 29. Bymeans of the adjusting screw 28, which is threaded and engages athreaded opening 30 in the frame 1, I can cause the frame 26 andface-plate 25 thereon, to swing outwardly or inwardly, at the bottomthereof, whereby the said faceplate, and object thereon, can be squaredor trued with respect to the tool 11, in other words, if the bore 31 ofthe pulley 32, for instance, should not be square with respect to theface of said pulley, the adjusting screw 28 can be manipulated to throwthe center-line 33 upwardly or downwardly, whereby the said bore 31 canbe brought to a horizontal or square position. After having squared thework upon the face-plate 25, in the manner described, the face-plate canbe bound or set by means of the bindingscrew 29. The face-plate 25 isprovided with a plurality of openings 34 which adapts the face-plate forvarious styles and dimensions of work. To secure the work in place,

on the face-plate 25, any suitable clamping means can be employed, theclamping device herein shown being a well known form.

To cut a key-seat the pinion 6 is rotated, by turning the handle 8, in adirection to cause the slide 4 to move toward the faceplate 25 farenough to cause the tool 11 to impinge the metal surrounding the bore 31and to pass completely through the said bore. The extent of the cut ofthe tool 11 while passing through the bore will be determined by theadjusting-block 13. While the slide 4, and tool-bar 10, are returning byreversing the pinion 7, the tool 11 will knock down and the butt-end ofthe bar 10 will rise, a slot 35 being provided in the tool bar for thispurpose, the block 13 acting as a fulcrum. When a new cut is to be takenthe forward end of the bar 10, and tool 11, can be advanced by the block13, to take a deeper cut. 1

Having noW described my invention, what I claim and desire to secure byLetters Patent is:

l. In a key-seating machine, a reciprocating slide, a tool-bar pivoted,at one end thereof, to said slide, said pivoted end being adapted for atransverse movement upon the pivot therefor, a cutting tool carried bysaid tool-bar, a slidable block carried bysaid slide having a roundedtop in contact With said tool-bar, a spring carried by said slideadapted to keep said bar in contact with said block,` andy means adaptedto slide said block to advance the tool carried by said tool-bar.

2. I'nY a key-seating machine, a reciprocating slide, a tool-bar,provided in one end thereofwithV an elongated slot, said slot being at aright angle to the cutting neovenient of said bar, a pivot pin carriedby said slide adapted to pass through said slot, a cutting tool carriedby said bar, an adjust able block carried by said slide adapted to raisesaid bar to advance the tool carried thereby, said block alsoconstituting a fulcrum point for the oscillation of said bar, when saidbar is returning from a cutting operation, and a spring carried by saidslide adapted to reset the bar after said bar has

